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Table of Contents
Vocabulary
Outline
Vocabulary
Extrusive rock:
formed from lava that erupted on to earths surface
Intrusive rock:
formed when magma hardens under ground.
porphyritic texture:
a rock with crystals spread across the background of much smaller crystals
Outline
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Table of Contents
Vocabulary
Extrusive rock: formed from lava that erupted on to earths surface
Intrusive rock: formed when magma hardens under ground.
porphyritic texture: a rock with crystals spread across the background of much smaller crystals
Outline